3. In a random sample of 450,000 US adults, the proportion of people who say they exercised atsome point in the last 30 days is p= 0.726 with a standard error of SE = 0.0007. What is the sample being used? The sample being used Is 450, 000 us adhits b) What is the population of interest? - 1 The population of interes it all us admits tothat PA THE DES say they exercisett. $) /What is the point estimate for the parameter of interest? Remember to use the correctsymbolic notation. P = 0. 726 d) Find and Interpret a 95% confidence interval for the proportion of US adults who say theyexercised at some point in the last 30 days. - 10726 + /0. 0007) CO.7253, 07267